BT-12 - Support and Installation guide
Important notes ::: Operating Instructions ::: Download the PDF (286KB)
The BT-12 (Balanced Tilter 12°)
The above logo is trade mark of BT-12, Design is Patent Pending
Thank you for purchasing the BT-12. I am confident you will enjoy its ease of use and uncompromised safety, when tilting your PA loudspeaker.
The BT-12 is a unique adapter for tilting pole mounted loudspeaker cabs, while maintaining the loudspeaker’s Center Of Gravity over the center of pole.
For more details and contact information, please visit bt-12.com
- The BT-12 should not be disassembled, modified, or altered in any way.
- Before every use, always check for any damaged, loose or missing parts. DO NOT use a unit that appears to be defective or has missing parts.
- The BT-12 is designed to support and tilt a loudspeaker weighing not more than 45kg (100lb). DO NOT exceed this weight limit.
- Make sure your loudspeaker stand is capable of supporting the total weight of the BT-12's 1.7kg (3.75lb) AND the weight of the loudspeaker.
- When changing the tilt angle of the BT-12, avoid placing fingers other then on the tilt lever and/or the tightening knobs. Some spaces contract as result of changing the tilt angle and may cause injury.
- When not in use, always have the BT-12 set and locked at zero tilt
- Always install and uninstall a loudspeaker on to or off the BT-12 when it is secured to the loudspeaker stand (pole lock knob is tightened) and locked at zero tilt.
- All regular and basic safety and precaution measures when setting up a loudspeaker on a stand should be conducted.
The BT-12's 'balancing principle' is true for loudspeakers having their Center Of Gravity (COG) height between 200 and 370mm (8" – 14.5") from the bottom of the cab, though even loudspeakers with higher COG and/or one that is not in line with the ‘top hat’ will benefit from a reduced COG shift caused by tilting.
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- Placing a loudspeaker onto the BT-12, as well as removing it from the
unit should be done when the unit is set and locked at 0 (zero) degrees (no tilt) so that the stem is vertical. This operation is easier and safer in this position. - When placing the loudspeaker on to the BT-12 pay attention to orient the cab in the correct direction for the application.
E.g. if a down tilt is to be applied, position the cab so that its back is toward the tilt lever’s side of the BT-12 as this side of the cab is going to rise by lifting the lever. Or, If up tilt is required, position the cab so that its front is toward the lever’s side of the BT-12. - Once the loudspeaker is seated properly on the BT-12,
release the Tilt Angle Locking Knob and move the tilt lever until the loudspeaker is at the desired tilt angle. Once in the right position, re-tighten the Tilt Angle locking Knob. - Clear tilt angle indicators/scales are provided on both sides of the BT-12 to enable reading and resetting the loudspeaker’s tilt angle.
- Tilt adjustment can be made at any stage. Under the load of the loudspeaker and even when the speaker is raised on the stand.
The Tilt Angle Locking Knob locks the whole mechanism including the tilt lever and only needs to be tightened lightly to insure a positive lock- The loudspeaker is prevented from rotating on top of the BT-12 by its weight pressing against the rubber foot. 7. Any horizontal adjustments can be made at any stage by simply rotating the BT-12 relative to the stand.
This is done by releasing the BT-12's Pole locking Knob, rotating the BT-12 (with or without the loudspeaker) to the desired direction and re-tightening the knob.
Be careful not to over tighten this knob especially in the case of aluminum poles that can be easily damaged. - As a bonus feature, the loudspeaker's cable(s) can be neatly routed around the BT-12's tightening knobs for a clean and tidy appearance.
- The specially routed foam packing that the BT-12's are shipped in, are meant to serve as storage inserts for the units between uses. They are purposely separated for each unit to enable maximum flexibility in fitting into your favorite road case.